{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{1}{cccccc}}
\hline\hline
                    &\multicolumn{6}{c}{}                                                         \\
                    &        Mean&        Med.&   Std. Dev.&         Min&         Max&        Obs.\\
\hline
\( D_t \)           &        0.03&        0.00&        2.12&       -8.30&       17.80&        1047\\
\hline\hline
\end{tabular}
}
